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BDD Descriptive
Module 10: Creating and Refining Tables During the Design Phase.
Creating and Refining Tables During the Design Phase. 1. What does it mean by insert check based on referential integrity? A record can’t be added …
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BDD Descriptive
Module 9: Planning and Preparation Through Analysis.
Planning and Preparation Through Analysis. 1. Write the steps of creating Database Model. The steps of creating database model are as follows: …
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BDD Descriptive
Module 8: Building Fast-Performing Database Models.
Building Fast-Performing Database Models. 1. Write the primary characteristics of OLTP database? Characteristics of OLTP database are as follows: …
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BDD Descriptive
Module 7: Understanding Data Warehouse Database Modeling.
Understanding Data Warehouse Database Modeling. 1. What is meant by surrogate key in a data warehouse? Used as a replacement or substitute for a de…
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BDD Descriptive
Module 6: Advanced Relational Database Modeling.
Advanced Relational Database Modeling. 1. What does it mean by De-normalization? Most often the opposite of normalization, more commonly used in da…
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BDD Descriptive
Module 5: Reading and Writing Data with SQL.
Reading and Writing Data with SQL. 1. What is SQL ? SQL Stands for Structured Query Language, is a non-procedural language used for accessing field…
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BDD Descriptive
Module 4: Understanding Normalization.
Understanding Normalization 1. Define functional and transitive dependency? Functional dependency: If the value of Y is determined by X then Y is f…
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- dbskool
- DBSkool is a website that provides tutorials, articles, and online courses related to database technologies such as Oracle, SQL Server, PL/SQL,FORMS, REPORTS, DBA, Oracle APEX and other relational databases. As the name suggests, DBSkool primarily focuses on educating individuals and professionals in the field of database management.
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